{{Short description|Bulgarian ultralight trike}} {{Use dmy dates|date=December 2022}} {{Use British English|date=December 2022}} <!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> {{Infobox aircraft | name = Swallow | logo = | logo_size = | image = | alt = | caption = | long_caption = | other_names = | aircraft_type = [[Ultralight trike]] | aim = | outcome = | related = | national_origin = [[Bulgaria]] | manufacturer = [[Fly Air Limited]] | design_group = | designer = | builder = | issuer = | status = Production completed | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = 2007 | retired = | first_flight = | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }} The '''Fly Air Swallow''' is a [[Bulgaria]]n [[ultralight trike]], designed and produced by [[Fly Air Limited]] of [[Pravets]]. When it was available the aircraft was supplied as a complete ready-to-fly-aircraft.<ref name="WDLA11">Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 212. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X</ref>
==Design and development== The Swallow was designed to comply with the [[Fédération Aéronautique Internationale]] [[microlight]] category, including the category's maximum gross weight of {{convert|450|kg|lb|0|abbr=on}}. The aircraft is a "cozy" two seater, with the occupants both sitting very close together.<ref name="WDLA11" />
The Swallow features a [[Flying wires|cable-braced]] [[hang glider]]-style [[high-wing]], weight-shift controls, a two-seats-in-[[tandem]] open cockpit with a [[cockpit fairing]], [[tricycle landing gear]] and a single engine in [[pusher configuration]].<ref name="WDLA11" />
The aircraft carriage structure is made from welded [[stainless steel]] tubing, with its single surface wing covered in [[Dacron]] sailcloth. Its {{convert|10.4|m|ft|1|abbr=on}} span wing is supported by a single tube-type [[kingpost]] and uses an "A" frame weight-shift control bar. The powerplant is a twin cylinder, air-cooled, [[two-stroke]], [[dual-ignition]] {{convert|50|hp|kW|0|abbr=on}} [[Rotax 503]], with the liquid-cooled {{convert|64|hp|kW|0|abbr=on}} [[Rotax 582]] engine optional. Main [[landing gear]] suspension is provided. The aircraft has an empty weight of {{convert|131|kg|lb|0|abbr=on}} and full fuel capacity of {{convert|25|L}}.<ref name="WDLA11" />
The standard wings offered with the basic carriage were the [[La Mouette Ipsos]] series, in wing areas of 12, 14, 16 and 16.9 square metres.<ref name="WDLA11" /> <!-- ==Operational history== --> <!-- ==Variants== --> <!-- ==Aircraft on display== -->
==Specifications (Swallow with La Mouette Ipsos 16 wing) == {{Aircraft specs |ref=Bayerl<ref name="WDLA11" /> |prime units?=met<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show --> <!-- General characteristics --> |genhide=
|crew=one |capacity=one passenger |length m= |length ft= |length in= |length note= |span m=10.4 |span ft= |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm=15.6 |wing area sqft= |wing area note= |aspect ratio= |airfoil= |empty weight kg=131 |empty weight lb= |empty weight note= |gross weight kg= |gross weight lb= |gross weight note= |fuel capacity={{convert|25|L}} |more general= <!-- Powerplant --> |eng1 number=1 |eng1 name=[[Rotax 503]] |eng1 type=twin cylinder, air-cooled, [[two stroke]] [[aircraft engine]] |eng1 kw= |eng1 hp=50
|prop blade number=3 |prop name=composite |prop dia m= |prop dia ft= |prop dia in= |prop note=
<!-- Performance --> |perfhide=
|max speed kmh=110 |max speed mph= |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh=48 |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |range km= |range miles= |range nmi= |range note= |endurance= |ceiling m= |ceiling ft= |ceiling note= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |climb rate note= |time to altitude= |sink rate ms= |sink rate ftmin= |sink rate note= |lift to drag= |wing loading kg/m2= |wing loading lb/sqft= |wing loading note= |power/mass= |thrust/weight= |more performance= |avionics= }}
==See also== *[[Fly Air Trike Moster]]
==References== {{reflist}}
<!-- ==External links== --> [[Category:Fly Air aircraft|Swallow]] [[Category:2000s Bulgarian sport aircraft]] [[Category:2000s Bulgarian ultralight aircraft]] [[Category:Single-engined pusher aircraft]] [[Category:Ultralight trikes]]